From NBC News: A gunman shot at least seven people, including two police officers, on Monday at a Navy facility in Washington, authorities said. Naval officials said that the gunman was on the loose.
SWAT officers swarmed the facility, the headquarters of the Naval Sea Systems Command at the Washington Navy Yard.
A naval security guard was among those shot and was hit in both legs, U.S. military officials said. Washington city police told WRC, the NBC affiliate in Washington, that one of their officers was also among those shot. It was not clear how many of the five others were civilian and how many were military.
Tim Hogan, a spokesman for Rep. Steven Horsford of Nevada, posted photos to his Twitter account of people tending to at least one person down on a street corner.
Gunfire was reported fired at approximately 8.20 a.m. and police SWAT teams entered building number 197 at the base headquarters in an attempt to apprehend the shooter who is reported to be armed with an AR-15 assault rifle.
Washington D.C. police said that the gunman is believed to have barricaded himself between the third and fourth floors in a room on the grounds of the naval yard, although this has not been confirmed. source – Daily Mail UK